GOST 8734 Structural Steel Pipe Cold Formed Seamless Steel Tubes For Marine
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
|Minimum Order Quantity :||10 ton||Price :||USD 800-1500/ ton|
|Packaging Details :||In bundles with seaworthy packing||Delivery Time :||45-60days|
|Payment Terms :||T/T, L/C, D/A, D/P, Western Union, MoneyGram||Supply Ability :||6000ton|
|Place of Origin:||China||Brand Name:||TORICH|
|Certification:||SO9001:2008 ，TS16949||Model Number:||ASTM A53 Gr.B|
|Product Name:||ASTM A53 Gr.B ERW Steel Pipe||Standard:||ASTM A53|
|Terms Of Trade:||FOB Or CIF||Brand:||TORICH|
|Transportation:||Ocean, Air||Certificate:||ISO9001, TS16949|
structural steel tubing,
structural steel square tubing
ASTM A53 Gr.B TypeE ERW Welded Black Carbon Steel Pipes
Size range: O.D.: 6-168mm W.T.:1-15mm L: max 12000mm
Steel Grade and Chemical Compositions:
|Grade||Tensil Strength Mpa||Yield Point Mpa||Elongtation %|
Pipes are made by ERW process.
The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding to a minimum of 1000°F(540℃)so that no untempered martensite remains, or otherwise processed in such a manner that no untempered martensite remains.
Diameter-- For pipe NPS1 1/2 (DN40) or smaller, the outside diameter at any point shall not vary more than ± 1/64in (0.4mm) from the specified outside diameter. For pipe NPS2 (DN50) or larger, the outside diameter shall not vary more than ±1% from the specified outside diameter.
Thickness—The minimum wall thickness at any point shall be not more than 12.5% under the specified wall thickness.
Weight(Mass):-- The weight(mass) of the pipe shall not vary more than ±10% from its specified weight(mass), as derived by multiplying its measured length by its specified weight(mass) per unit length.
Workmanship, Finish, and Appeaerance:
The pipe manufacturer shall explore a sufficient number of visual surface imperfections to provide reasonable assurance that they have been properly evaluated with respect to depth.
Test and Inspection:
- Mechanical Test
- Tension Test
- Flattening Test
- Hardness Test
- Bend Test
- Hydrostatic Test
- Nondestructive Electric Test